Deopham Green was another air base constructed after America's entry into the war to Class A standards for use by the B-17 Flying Fortress heavy bomber. When the 452nd Bomb Group arrived in January 1943 they found a main runway of 2,000 yards, two auxiliary runways, each 1400-yards in length, two T2-type hangars, 50 hardstandings and temporary buildings to accommodation nearly 3,000 men. The Group stayed for the rest of the war, flying 250 missions at the high cost of 110 lost bombers.